摘要
目的分析创伤后应激反应筛查表（PTSS20）的因素构成及影响因素,了解创伤后急性应激障碍的症状群特征。方法 203名5.12地震灾民完成PTSS20有效测验,以PTSS20总分低、中、高分3组做条目分析、因素分析及信度、效度检验。结果 PTSS20因子分析得到8个因子构成：焦虑/警觉性增高、情绪不稳、迟钝/麻木、创伤再体验/回避、抑郁、无效应对、躯体不适、自伤或自杀行为,对总分累积贡献率为71.247%;除4个条目外,其余条目鉴别指数在0.23~0.575,有11个条目分在低、中、高度应激反应组比较依次增高;C ronbach＇s（系数为0.8646~0.8762;调整后的分半信度为0.8268。PTSS20总分与视听觉刺激直线相关;性别、调查时间、对村官的满意度、亲人死亡、家庭关系、年龄进入回归模型,复相关系数R=0.353。结论 PTSS20筛查量表能较全面反应急性应激反应的多种症状,可作为筛查工具。
Objective To analyze the Screen for Post-traumatic Stress Reaction（PTSS20） factors and influence factors,to understand acute-traumatic stress disorder symptoms of composition after 5.12 earthquake.Methods A total of 203 victims of the Wenchuan Earthquake which happened on May 12,2008 were tested,and were divided into low,medium,high groups based on PTSS20 total scores to test item analysis,factor analysis and reliability and validity research.Results Through the principle component analysis with quartimax rotation,we found eight factors： anxiety/hypervigilance,emotional instability,slow/numbness,re-experiencing/avoidance,depression,ineffective response,physical discomfort,self-harm or suicidal behavior,which explained 71.247% variance.except four items,the remainder＇s index of discrimination was 0.23~0.575.Eleven item scores gradually rose in low,medium,high stress reaction groups.The reliability coefficients were 0.8718~0.8914 for Cronbach＇s alpha coefficient,0.8527 for adjusted split-half reliability.PTSS total scores showed linear correlation with audio-visual impact.Multi-linear regression indicated that six influencing factors were significantly correlated with PTSS20 total scores including gender,investigative time,satisfactory extent to village official＇s relief,relative＇s death,family relation,age.Multiple correlation coefficient was 0.353.Conclusion PTSS20 screening scale is a more comprehensive response to a variety of symptoms of acute stress reaction,can be used as screening tools.
出处
《中国健康心理学杂志》
2011年第9期1129-1132,共4页
China Journal of Health Psychology
